package com.elysia.web;

import com.elysia.pojo.User;
import com.elysia.service.UserService;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;

@WebServlet("/registerServlet")
public class RegisterServlet extends HttpServlet {
    private UserService service = new UserService();
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        //1.获取用户名和密码数据
        String username = req.getParameter("username");
        String password = req.getParameter("password");

        //将用户名和密码写入
        User user = new User();
        user.setUsername(username);
        user.setPassword(password);
        //获取用户输入的验证码
        String checkCode = req.getParameter("checkCode");
        HttpSession session = req.getSession();
        String checkCodeGen = (String) session.getAttribute("checkCodeGen");

        // 验证

        if(!checkCodeGen.equalsIgnoreCase(checkCode)){

            req.setAttribute("register_msg","验证码错误");
            req.getRequestDispatcher("/register.jsp").forward(req,resp);

            // 不允许注册
            return;
        }
        //2.调用service注册
        Boolean register = service.register(user);
        //3.判断注册成功与否
        if (register){
            //注册成功，跳转到登陆页面
            req.setAttribute("register_msg","注册成功，请登陆");
            req.getRequestDispatcher("/login.jsp").forward(req,resp);
        } else {
            //登陆失败，继续跳转到注册页面
            req.setAttribute("register_msg","用户名已存在");
            req.getRequestDispatcher("/register.jsp").forward(req,resp);
        }
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        this.doGet(req,resp);
    }
}
